{
  "abstract": "Extracting cosmological information from nonlinear and non-Gaussian large-scale structure (LSS) remains a major challenge. We introduce the Zel’dovich-inspired (ZI) transform, a simple one-parameter local nonlinear transform in which η controls the weighting of higher-order information in the transformed density field. For η ≥ 3, the transform can substantially suppress gravitational non-Gaussianity. Using real-space matter density fields from the Q uijote suite and Fisher analysis, we find that the joint data vector of three transformed-field power spectra with { η = ∞ , 6, 3}, denoted P ZI , reduces marginalized errors for all parameters considered. The improvements range from severalfold for some ΛCDM parameters to factors of 290 for local primordial non-Gaussianity (PNG) and 107 for the summed neutrino mass. Tests on independent fiducial simulations yield nearly unbiased parameter estimates. Compared with other state-of-the-art summary statistics, P ZI provides tighter cosmological constraints.",
  "abstract_shown": true,
  "affiliations": [
    "Jilin University",
    "Xiamen University",
    "Shanghai Jiao Tong University",
    "Key Laboratory for Particle Astrophysics and Cosmology (MOE)",
    "Peking University"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 4,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Yun 云 Wang 王",
      "orcid": "0000-0003-4064-417X"
    },
    {
      "affs": [
        1
      ],
      "name": "Hao-Ran 浩然 Yu 于",
      "orcid": "0000-0001-5277-4882"
    },
    {
      "affs": [
        2,
        3
      ],
      "name": "Yu 瑜 Yu 余",
      "orcid": "0000-0002-9359-7170"
    },
    {
      "affs": [
        0,
        4
      ],
      "name": "Ping 平 He 何",
      "orcid": "0000-0001-7767-6154"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/41xhx2zv4hgg2.bib",
  "cited_by": 0,
  "doi": "10.3847/1538-4357/aea08c",
  "fulltext_url": null,
  "id": "41xhx2zv4hgg2",
  "issns": [
    "0004-637X",
    "1538-4357"
  ],
  "landing_url": "https://iopscience.iop.org/article/10.3847/1538-4357/aea08c",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "3103|Cosmology and Gravitation Theories"
    ]
  ],
  "openalex": "W4417448391",
  "pdf_url": "https://iopscience.iop.org/article/10.3847/1538-4357/aea08c/pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-30",
  "publisher": "American Astronomical Society",
  "ris": "https://research.draconitic.com/paper/41xhx2zv4hgg2.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:11Z",
      "native_id": "10.3847/1538-4357/aea08c",
      "source": "crossref",
      "url": "https://iopscience.iop.org/article/10.3847/1538-4357/aea08c"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "openalex:3103|Cosmology and Gravitation Theories",
      "subfield": "cosmology"
    }
  ],
  "title": "Recovering Subtle Cosmological Information with the Zel’dovich-inspired Transform",
  "title_text": "Recovering Subtle Cosmological Information with the Zel’dovich-inspired Transform",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:11Z",
  "url": "https://research.draconitic.com/paper/41xhx2zv4hgg2",
  "venue": "The Astrophysical Journal",
  "versions": []
}